Plastering-machine.



G. RF FOX.

I PLASTERING MACHINE.

APPLiOATION FILED 1 213.21, 1911. l,O17,256. Patented Feb. 13, 1912.

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. G. B. POX.

PLASTERING MAGHINE.

APPLICATION FILED FEB.21. 1911. 1 17 256 Patented Feb. 13, 1912.

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L hlllllll!!! 1 G. R. FOX.

PLASTERING MACHINE.

APPLIOATION FILED PEB.21,1911.

Patented Feb. 13, 1912.

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e. R. FOX. PLASTEBING MAOHINB.

APPLIOA'TIQN FILED PEB.21, 1911.

1,017',%& Patented Feb. 13, 1912.

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oniirnn GUY B. FOX, 01 EVANSTON, ILLINOIS.

sta r-as earner carton.

PLASTERING-MAGEINE.

Specification of Letters Yatent.

Patented. Feb. is, 1912.

Application filed. February 21,1911. Serial No. 10,095.

To all whom it may concern:

Be it known that I, GUYR. Fox, a citizen of the United States, residing at Evanston, in the county of Cook and State of Illinois, have invented a new and useful Plastering- Machine; and I do tion of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

- This invention relatesto a new and useful machine, adapted for plastering walls and the like.

The invention in its broadest scopeaims as its primary object to provide a vert cally moving platform, including means for holding the same in raised positions.

As another object, the invention aims to 1 provide means for mixing the plaster.

A further object of the invention is to provide a funnel shaped member having arranged therein a vertical spiral feed, for feeding the plaster through the funnel to the revolu'ble trowel or helico-volute'plastering knife.

Another object of the invention is to pro-.

vide a mixing tank (which is supported in annular bands) having the mixing mechanism therein, which mixing mechanism and spiral feed are geared to the. same shaft so the two will operate simultaneously.

A further feature-of the invention is to provide mixing plaster is properly mixed, it will pass automatically'into the funnel, where it is elevated by the spiral feed. I v

The object of rendering the platform vera flexible connection between the -mixing tanks and two funnel shaped members, each having. a spiral feed and plastering knife, one funnel shaped member being arranged at right angles to the .other.

hereby declare the foland exactdes'crip place to place.

there is disclosed a certain form and contank and the funnel, so that as themovable is to raise the funnel, the.

p A further object of the invention isto provide a foldable or collapsible frame, for the support of the vertically movable platforim'said frame being provided with caster wheels of the design shown in the drawings, so that the apparatus may be moved from In the drawings, however,

struction of apparatus, but, in practical fields, this form and, construction may require alterations, to whichthe applicant is entitled, provided the alterations are comprehended by the appended claims.

The invention comprises further features and combinations of parts hereinafter ,set

forth, shown in the drawings and claimed.

In the drawings :Figure 1 is a view in side elevatlon" of the plastering apparatus constructed in compliance with the mvent ion. Fig. 2 is a plan view of the apparatus, showing the relative positions of the various parts. Fig. 3 is a view in elevation and partly in section of the frame, for supporting the, vertically movable plat-form. Fig. t is a view in elevation of the frame, showing the same collapsed or folded. Fig. 5. is a sectional view through the mixing tank, in order to disclose the interior features there- 7 of. Fig. 6 is a sectional view through one ofthe funnel shaped members or plaster holding casings, clearly disclosing the spiral feed mechanism therein and the helico-volute plastering knife. Fig. 7 is a detail view of the plastering knife. Fig. 8 is a of a portion of the apparatus. Fig. 9 is a plan view of the platform 17, showing how it engages the rods 5, by virture of the recesses .18.

Referring more specifically to the accom panying drawings, 1 designates the frame as a whole, which is constructed of tubular rods 2, which are connected together by the unions 3'. This frame is foldable or collapsible, as shown in Fig. 4. Receivable within the lower efids of the lower sections of the sectional vertical rods 5 atthe corners of the frame are threaded the shanks 6 of the plates which are provided with semi-cirdetail view 7 cular slots 4*. Castings 7 are provided, in

which the caster wheels 8 are journaledi These castings are arranged below the plates 4 and movably adjacent thereto, as shownain Fig. 8. Extendingthrough the semi ciriular slots 4* gral with the castings 7 are the bolts It), by

and the plates 9 (which are iiite- Ill) - and 14, being pivoted at all which the plates 4 and 9 may be held in proper relations with one another. before stated the rods 5 are made in sections, which are connected together by the unions 3, ll, and, 12, into which unions 11 and 12, the sections of the tubular rods 1? and ll are threaded. The sections of each the tubular rods 13 and 14- are joined liy the turn buckles l5. ly virtue of the turn l'aiickle, rigidity and strength are atlbrded for the frame, so hold the platform 17 properly in position. This platform at its corners recessed, shown at 18, to receive the vertical posts (w'tul'mlar rods 5, thus affordinp; means whereby the platform may be guided a the same is raised or lowered.

To 1': so and lower the platform, cables or the like 18 fastened thereto and passed over pulleys it), which are suspended by the hooks 20 from the upper extremities otthc tibular members or posts 5. These hooks 20 engage the upper hollow portions of the said tubular posts 5. The cables 18, after. passing over the pulleys 19, are Wrapped several times about the plates or members 21, thus affording means for holding the platform in its raised or lowered position.

To permit the frame of the apparatus to collapse, the unions l1 and 12 are provided with lateral extensions 5*, to which the rods or bars l-lare pivoted, at 5 To hold the "frame rigid, however, the lateral extensions 5*, and the rods or bars i i are provided with registering apertures, through which the split or dowel pins 5" are extended. By vir tue of these dowel pins, the frame is held rigidly erected.

To collapse the frame of the apparatus as shown in Fig. 4;, the dowel pins 5 are first removed, and because of the rods 2 3 and 5, the longitudinal sides of the frame may be brought together as shown in Fig. 4, after which the tongues 55) may be disconnected by removing their pivot bolts, thus rendering it possible to pack the frame in a small. compass. The dowel pins 5 ass through the lateral. extensions 5 and tirough the apertures 51 of one of the sections of the rods 14, as shown in Fig. 3. After having; removed the dowelpins 5 to collapse the frame shown in Fig. l, the pins are re-inserted in the extensions 5, so'as to prevent their loss. The frame not only may be collapsed as shown in Fig. l, but may be knocked down or dis-joined, b'v discmmccl'iiupthe union?) ll and 12, and the pivots 5 and S, the dowel pin connections 5 and llic torn buckles 15, as well as the t ngues 59, after which the various parts ot the trans: may be packed in one pile.

The vei iically movable platform is do 3 nod. for the purpose oi' carrylnr; ant. supiorl. no; the various parts oi the bclico vomembers.

ale plastering nu-rchiue, nzunely, the n'iixinggj apparatus, the funnel shaped members and. their spiral feed mechanisms and plastering knives, and a conventional form of englue or motor, for furnishing power to the driving crankshaft. The engine or motor.

is only illustrated in outline, and is de signed to represent a conventional form of motor. This motor 22 is supported im- Inediately, upon the platform, and is 1provided with connections 24 to the cranks iaft However, the mixing tanks 26 are sup ported by the standards 29. These standards 29 are hollow and their lower ends are threaded into sockets 30 of the platform. leceived. by the upper portions of the standards are the shanks 31 of the posts 32. l"hese posts 82 are provided with enlargements 33, thus affording bearings 34 for the crank shaft Secured by straps 7a to the posts are the annular bands 41, in which the mixing tanks 26 are supported and arranged.

One end of the crank shaft 25 is mounted in bearing 32", the shank 31 of which is received in the standard or support 29, which is threaded into the socket 30. Thefunnel shaped members, or plaster holders,-

or plaster holding casings 27 and 28 are supported by the standards a, through which the thumb screws 72 extend. These thumb screws 71 engage the annular rings 6, which extend through the ears (1 of the .lun-

nel shaped members. The rings 0 are split or severed, and connecting their adjacent ends are turn buckles (Z, by which. the rings.

may be drawn tightly about the funnel shaped members. the construction of the thumb screws and rings, the funnel. shaped members may slightly move on pivots.

The mixing tanks are provided with closure members 38", which close the openings atone end of the tanks, as shown in Fig. 5, there being guides 38 for the said closure At one cud oil the crank shaft 25, a gear wheel is arranged. which mesl'urs with the gear wheels 36 of the corn-- bincd feed and mixing screws 38. Vv'hen the gear wheels 36 are rotated, the coup biued teed and mixing;- screws 38 are rotated with them, that is, when the conventional form of clutch mechanisms 37 are operated, as will be clearly understood from Fig. lly the combined. mixing and feed.- ing or conveying screws, the plaster is fed from the mixing tanks, through the flexible connections 39 into the funnel shaped mem- I other.

are provided with hollow shafts el l. The

lower end of the vertical shaft 44- is formed with a restricted portion, which is seated in a socket 48. Secured to the vertical shaft 44 isa worm wheel 45, which meshes with the worm 46 of the shaft 25. The horizontal shaft 44: is also provided with a'restricted portion (not shown), which is seated within .the bearing 32, the shank of which" is receivedinthe hollow standard 29*. Rotate bly carried by-the horizontal shaft 44 (which is hollow) is a gear wheel 46, which meshes with the gear wlieel lo of the shaft 25.

Thus it will be seen that by the worm wheel and worm connection and the gear connec- 'tions 46 and 45?, the vertical and horizontal v shafts a l may be rotated. Arranged in the hollow shafts 44 are the shafts 56 of the plastering knives 54. These shafts 56 are formed with elongated recesses 52, into which the thumb screws 51 extend, thus pissing the shafts 56 and is to rotate as one By virtue of the recess 52 being elongated,

the, shafts 56 may have vertical movement.-

The 5 ends of the shafts 56 are provided with thrust hearings, in the plates 49, which are arranged above the springs 50. The springs 50 are seated in-the ends of the hollow 44, thus constituting yielding means for the shafts 56. Surrounding the feed screws 42 are the cylinders 53, through which, the plaster is elevated to the top and the outer portions of the funnel shaped members. As

the plaster leaves the cylinders 53, it is picked up by the revoluble spiral or snail shaped or helico-volute plastering knives 5i and plastered upon. the ceiling or side wall. The plastering knives 54 are made of resilient metal, and the spiral portions of the knives as shown in Fig. 7 are slightly spaced apart, so that when the knives are held 'yieldably against the wall, the said spiral port-ions of the knife will telescope one an-- The plastering knives are rotated with the shafts 44, by virtue of the thumb screw and recess connection 51 and 52. By virtue of the springs 50, the helico-volute plastering knivesfnl are allowed a yielding action as they are revolving, in order to properly and evenly plaster the ceiling or side wall.

The sides of the frame of tlieapparatus are provided with tongues 59, the extremities of which haveliandlcs 60. By the -combined feed and mixing screws are retated by virtue of the gearconnections the knife.

and 36, between the screws and the shaft 25,

until the plastering mixture is thoroughly agitated. As the material is agitated and thoroughly mixed, it is "fed forward through the tanks and the flexible connections 39' into the lower portion of the funnel shaped member 27 and one end-0f the funnel shaped member 28. The material is then fed up wardly and outwardly of the cylinders 53,

until it is picked up by the plastering knives and plastered upon the ceiling or side wall.

These plastering knives are in the form of the contour of a snail, or may be termed helico-volute knives, thus constituting eflicient means for thinly coating the ceiling and side wall. These knives are constructed from a piece of resilient material, the volute scrolls of the knives'are substantially flat, the scrolls diminish in width toward one end, with the diminished end connected to the shaft 56. As shown in Fig. 6 of the drawings the funnel shape member 27 is provided with a portion 27,by which the waste plaster may be carried back to the spiral feed of the cylinder 53.

From the foregoing, taken in connectici with the annexed drawing, it will be observed that a novel form of plastering machine has been devised for automatically plastering ceilings and sidewalls of rooms and the like, and one which is found to be practicable and essentially usefulby plasterers. 1 v

The invention having been set forth, what i is claimed as new and useful is 1; in a plastering machine, a funnel;

shaped member, a cylinder therein, a spiral feed mechanism arranged in the cylinder and having a hollow shaft, a revoluble knife above the funnel shaped member and having a shaft arranged telescopically within. the hollow shaft of the feed mechanism, and! means for 2. In a plastering machine, a funnel shaped member, a spiral, feed mechanism therein having a hollow shaft, a revoluble plastering knife above the funnel shaped member and provided with a shaft extendinginto the shaft of thefeed mechanism, means for yieldably mounting the shaft of the plastering knife, and connections between the two shafts to permit them to rotate as one body.

In a plastering machine, a vertically movable platform, supports thereon having thumb screws penetrating their ends, an. an- I nular member having a turn buckle engaged by the thumb screws, and a funnel shaped member including a revoluble plastering knife and plaster feed mechanism, said funnel shaped member being supported within the annular member.

4.111 a plastering machine, a funnel shaped member including a revoluble plasyieldably mounting the shaft of tering knife and plaster feed mechanism, a plaster mixing tank having a flexible connection with the funnel shaped member, said tanks having mixed mechanism a revoluble crank shaft havingg ar connections with the feeding mechanism, and knife, and with the mixing mechanism, for transmitting motion thereto. v

5. In a plastering machine, a funnel shaped member including a revoluble plas tering knife and plaster feed mechanism, a plaster mining tank having a ilexibleponnection with the funnel shaped member, said tank having mixing mechanismfa revoluble crank shaft having gear connectionswith the feeding mechanism, and knife and with the mixing mechanism, for transmitting motion thereto, and means for throwing the mixing mechanism in and out of gear.

(3. In a plastering machine, a funnel shaped member, a revoluble spiral feed mechanism therein including two telescopically arranged shafts, the outer one of which carrying a spiral feed, while the inner one is provided with a spiral shaped plastering knife one end of which is disposed beneath the termination of the spiral feed.

7. In a plastering machine, a funnel shaped 1ncmhcr,a revoluble spiral feed mechanism therein including two telescopically arranged shafts, the outer one of which carrying'a spiral feed, while the inner one is provided with a spiral shaped plastering knife one end of which is disposed beneath the termination of the spiral feed, and means for causing the two shafts to rotate as one body.

8. In a plastering machine, a funnel shaped member, a spiral feed mechanism therein, and a yieldably mounted snail shaped plastcring knife coiiperating therewith.

5). ln a plastering machine, a rcvoluble spiral feed mechanism including a yieldably mounted spiral shaped plastering knife rotatable therewith, and afunnel member dis posed helow the plastering knife and surrounding the spiral feed mechanism, said funnel member having means to convey the Waste plaster back to the feedmechanism.

10. in a plastering machine, a funnel shaped inianhcr, a rcvoluhlc feed mechanism therein, a knife revolublc withthe feed mechanism extended sligl'itly beyond the member, said knife being yioldahly mounted and coiling and tapering toward the termination of the food mechanism.

[1 in a lastering machine, a feed mechanism, a surronmling member therefor, a re sili nl histcring knife, coiling and tapering toward its (miter rovolnblc with the feed mechanism. and adapted to be fed thereby, each coil eing lower than the preceding one until the food nwchanism is reached,

' 2;. in :1 ast ring machine, a rcvoluble spiral feed mechanism, merging iutoa spiral width toward one end of the knit ent pla ring knife, and a. surrounding plaster holder for the feed.

In av plastering machine, a revoln'ole' spiral feed mechanism, merging into a spiral shaped resilient plastering knife, a surrounding plaster holder for the feed, said knife be ing yieldably mounted with relation to the feed mechanism, and means for causing the knife to rotate with the feed i'nechanism.

14. In a. plastering machine, a spiral feed IDEPllfilllSlH having a hollow shaft, a revolu ble plastering knife provided with a shaft extending into the hollow shaft and yieldably mounted therein, means to cause the two shafts to rotate as one body, a surrounding inclosure for the spiral feed mechanism, a mixing tank communicatively connected. to the surrounding inclosure, a mixing mechanism in the tank, and means for operating the mixing mechanism and the "hollow shaft.

15. In a plastering machine, a single helico-rolute resilient. plastering knife, the scrolls of which being substantially flat.

16. In a plastering machine, a plastering single helico-volute compression knife, the scrolls of which being substantially flat and means for revolving the knife.

17. In a plastering machine, a spiral resilient revolnblc plastering helico volnte knife, the volute scrolls of which Toning snlr stantially flat, the knife being attached at one end and free at the other, a plaster mixing mechanism, and means for operating the mixing mechanism and revolving the knife simultaneously.

18. In a plastering machine, a helico-vw lute resilient revohible yieldably mounted plastering knife, the volute scrolls of which being substantially flat, the knife being attached at one end and free at the othciz' 19. In a plastering n'iaohinc. a helico-volute resilient rcrol'uhlo vieldably mounted plastering knife, the volute scrolls of which being substantially flat, the knife being attached at one end and free at the other, and means for revolving the knife.

2O. In a plastering machine, a helico-volute resilient revoluhle plastering knife, the

volute scrolls of which being substantially flat, and diminishing in width toward one end of the knife, and a spiral feed mechanism for the knife.

. 21. In a plastering machine, a helico-volute resilient revoluble plastering knife, the volnte scrolls of which being substantially flat, and diminishing in width toward one end of the knife, a spiral feed mechanism for the knife, and means for sinniltancouslv operating the food mccl'ianism and the knife.

22. in a plastering machine, a hclico-volute rcvoluble spiral, yieldably mounted nllcring knife, the volute scrolls of n" mg substantially flat, and (llll'l'llllSiwt All mechanism, and means for simultaneously .operating the mixing mechanism, feed mechanism and the knife.

23. In a' plastering machine, a helico-volute revoluble plastering knife, the volute scrolls of which being substantially fiat, and diminishing in width toward one end of the knife, and a feed mechanism for feeding the smaller end of the knife.

24. In-a plastering machine, a revoluble helico-volute plastering knife, the volute scrolls of which being substantially fiat, and diminishing in width toward one end of the knife, and a plaster holder arranged below the knife.

25. In a plastering machine, a helico-volute plaster knife constructed from a piece of resilient material, the volute scrolls of the knife being substantially flat.

26. In a plastering machine having a revoluble member, a helico-volute plaster knife constructed ,from a piece of resilient material, the volute scrolls of. the knife being substantially flat, the scrolls diminishing in width toward one end, with the diminished end connected to the'revoluble member of the machine.

27. In a plastering machine having 2. rev

oluble member, a helico-volute plaster knife constructed from a piece of resilient material, the volute scrolls of the knife being substantially flat, the scrolls diminishing in width toward one end, with the diminished end connected to the revoluble member of the machine, a feed mechanism for feeding the diminished end of the knife and a plaster holder surrounding the feed mechanism,

the holder having a portion inclined toward the feed mechanism for returning the waste plaster back to the feed mechanism.

28. In a plastering machine, a re'voluble name to this specification in the presence of two subscribing witnesses. i GUY R. FOX.

Witnesses:

J O N F. Bornn, EMMA M. BOYER. 

